• 专利标题:   Preparing graphene oxide-reinforced modified phenolic foam comprises e.g. mixing isophorone diisocyanate and polyethylene glycol, adding solvent and catalyst, mixing with graphene oxide dispersion liquid, and adding resole phenolic resin.
  • 专利号:   CN111286071-A
  • 发明人:   CHEN Q, ZAN H
  • 专利权人:   CHENGDU NEW KELI CHEM ENG SCI TECHNIC
  • 国际专利分类:   C08J009/14, C08K003/04, C08L061/06, C08L075/08
  • 专利详细信息:   CN111286071-A 16 Jun 2020 C08J-009/14 202056 Pages: 8 Chinese
  • 申请详细信息:   CN111286071-A CN10842244 27 Jul 2018
  • 优先权号:   CN10842244

▎ 摘  要

NOVELTY - Preparing graphene oxide reinforced modified phenolic foam, comprises, (i) mixing isophorone diisocyanate and polyethylene glycol, then adding solvent and catalyst, and raising the temperature to 60-80 degrees C to obtain isocyanate-terminated polyurethane prepolymer, (ii) mixing the isocyanate-terminated polyurethane prepolymer prepared in step (i) and graphene oxide dispersion liquid, and reacting oxygen-containing functional group in the graphene oxide with the isocyanate group in the prepolymer to obtain covalently bonded graphene oxide-polyurethane prepolymer, and (iii) combining the covalently bonded graphene oxide-polyurethane prepolymer prepared in step (ii) with resole phenolic resin, surfactant, foaming agent and curing agent, stirring and mixing, then pouring into a mold, and closing the mold for foaming, curing, and aging to obtain final product. USE - The method is useful for preparing graphene oxide-reinforced modified phenolic foam. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene oxide-reinforced modified phenolic foam prepared by above method.